ASTM A193 B7 ALLOY STEEL ROUND BAR

A193 B7 Alloy Steel Round Bar

The ASME A193 designation covers fasteners intended for use in pressure vessels, valves, flanges, and fittings. Heat treated chromium-molybendum (AISI 4140) high-yield bolting steel for high pressure applications. A-193 B7 is considered as the most suitable for bolts used at temperature below 450°C with a minimum effect on its structural strength up to 1,000°F.